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Electrophysiological recordings in humans reveal reduced location-specific attentional-shift activity prior to recentering saccades

Ruth Krebs UGent, Nico Böhler UGent, Helen Zhang, Mircea A Schoenfeld and Marty G Woldorff (2012) JOURNAL OF NEUROPHYSIOLOGY. 107(5). p.1393-1402
abstract
Being able to effectively explore the visual world is of fundamental importance, and it has been suggested that the straight-ahead gaze position within the egocentric reference frame ("primary position") might play a special role in this context. In the present study we employed human electroencephalography (EEG) to examine neural activity related to the spatial guidance of saccadic eye movements. Moreover, we sought to investigate whether such activity would be modulated by the spatial relation of saccade direction to the primary gaze position (recentering saccades). Participants executed endogenously cued saccades between five equidistant locations along the horizontal meridian. This design allowed for the comparison of isoamplitude saccades from the same starting position that were oriented either toward the primary position (centripetal) or further away from it (centrifugal). By back-averaging time-locked to the saccade onset on each trial, we identified a parietally distributed, negative-polarity EEG deflection contralateral to the direction of the upcoming saccade. Importantly, this contralateral presaccadic negativity, which appeared to reflect the location-specific attentional guidance of the eye movement, was attenuated for recentering saccades relative to isoamplitude centrifugal saccades. This differential electrophysiological signature was paralleled by faster saccadic reaction times and was substantially more apparent when time-locking the data to the onset of the saccade rather than to the onset of the cue, suggesting a tight temporal association with saccade initiation. The diminished level of this presaccadic component for recentering saccades may reflect the preferential coding of the straight-ahead gaze position, in which both the eye-centered and head-centered reference frames are perfectly aligned and from which the visual world can be effectively explored.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
RE-CENTERING BIAS, HUMAN SUPERIOR COLLICULUS, FRONTAL EYE FIELD, VISUAL-ATTENTION, PARIETAL CORTEX, MOVEMENTS, MONKEY, POTENTIALS, POSITION, NEURONS, eye movement, attention, electroencephalography, recentering bias, presaccadic potentials
journal title
JOURNAL OF NEUROPHYSIOLOGY
J. Neurophysiol.
volume
107
issue
5
pages
1393 - 1402
Web of Science type
Article
Web of Science id
000302126500012
JCR category
PHYSIOLOGY
JCR impact factor
3.301 (2012)
JCR rank
22/79 (2012)
JCR quartile
2 (2012)
ISSN
0022-3077
DOI
10.1152/jn.00912.2010
project
The integrative neuroscience of behavioral control (Neuroscience)
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2109142
handle
http://hdl.handle.net/1854/LU-2109142
date created
2012-05-17 11:07:00
date last changed
2016-12-19 15:42:56
@article{2109142,
  abstract     = {Being able to effectively explore the visual world is of fundamental importance, and it has been suggested that the straight-ahead gaze position within the egocentric reference frame ({\textacutedbl}primary position{\textacutedbl}) might play a special role in this context. In the present study we employed human electroencephalography (EEG) to examine neural activity related to the spatial guidance of saccadic eye movements. Moreover, we sought to investigate whether such activity would be modulated by the spatial relation of saccade direction to the primary gaze position (recentering saccades). Participants executed endogenously cued saccades between five equidistant locations along the horizontal meridian. This design allowed for the comparison of isoamplitude saccades from the same starting position that were oriented either toward the primary position (centripetal) or further away from it (centrifugal). By back-averaging time-locked to the saccade onset on each trial, we identified a parietally distributed, negative-polarity EEG deflection contralateral to the direction of the upcoming saccade. Importantly, this contralateral presaccadic negativity, which appeared to reflect the location-specific attentional guidance of the eye movement, was attenuated for recentering saccades relative to isoamplitude centrifugal saccades. This differential electrophysiological signature was paralleled by faster saccadic reaction times and was substantially more apparent when time-locking the data to the onset of the saccade rather than to the onset of the cue, suggesting a tight temporal association with saccade initiation. The diminished level of this presaccadic component for recentering saccades may reflect the preferential coding of the straight-ahead gaze position, in which both the eye-centered and head-centered reference frames are perfectly aligned and from which the visual world can be effectively explored.},
  author       = {Krebs, Ruth and B{\"o}hler, Nico and Zhang, Helen and Schoenfeld, Mircea A and Woldorff, Marty G},
  issn         = {0022-3077},
  journal      = {JOURNAL OF NEUROPHYSIOLOGY},
  keyword      = {RE-CENTERING BIAS,HUMAN SUPERIOR COLLICULUS,FRONTAL EYE FIELD,VISUAL-ATTENTION,PARIETAL CORTEX,MOVEMENTS,MONKEY,POTENTIALS,POSITION,NEURONS,eye movement,attention,electroencephalography,recentering bias,presaccadic potentials},
  language     = {eng},
  number       = {5},
  pages        = {1393--1402},
  title        = {Electrophysiological recordings in humans reveal reduced location-specific attentional-shift activity prior to recentering saccades},
  url          = {http://dx.doi.org/10.1152/jn.00912.2010},
  volume       = {107},
  year         = {2012},
}

Chicago
Krebs, Ruth, Nico Böhler, Helen Zhang, Mircea A Schoenfeld, and Marty G Woldorff. 2012. “Electrophysiological Recordings in Humans Reveal Reduced Location-specific Attentional-shift Activity Prior to Recentering Saccades.” Journal of Neurophysiology 107 (5): 1393–1402.
APA
Krebs, R., Böhler, N., Zhang, H., Schoenfeld, M. A., & Woldorff, M. G. (2012). Electrophysiological recordings in humans reveal reduced location-specific attentional-shift activity prior to recentering saccades. JOURNAL OF NEUROPHYSIOLOGY, 107(5), 1393–1402.
Vancouver
1.
Krebs R, Böhler N, Zhang H, Schoenfeld MA, Woldorff MG. Electrophysiological recordings in humans reveal reduced location-specific attentional-shift activity prior to recentering saccades. JOURNAL OF NEUROPHYSIOLOGY. 2012;107(5):1393–402.
MLA
Krebs, Ruth, Nico Böhler, Helen Zhang, et al. “Electrophysiological Recordings in Humans Reveal Reduced Location-specific Attentional-shift Activity Prior to Recentering Saccades.” JOURNAL OF NEUROPHYSIOLOGY 107.5 (2012): 1393–1402. Print.